MERV 11 Filters | McMaster-Carr

Filter by

System of Measurement

Inch

Thickness

12"

HVAC Filter Trade Size

MERV Filter Rating

Filter Type

Frame Material

For Removing

Maximum Temperature

Reusable

Material

Filter Efficiency @ 1 Microns

65%

Construction

Pleated

Filter Efficiency @ 0.3 Microns

20%

Removes Particle Size Down To

Less than 100 μm

Filter Efficiency @ 3 Microns

Filter Efficiency

Air Filter Performance

Application

Filtering Method

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

For Use With

Specifications Met

Finish

115 Products

About Air Filter Efficiency Ratings

Compare MERV rating, efficiency, and particle size to find the right filter for your location—from warehouses and offices to hospitals and labs.

Filter Type

Panel

Install as standalone filters or as prefilters

107 products

Box

The rigid frame withstands changes in airflow

8 products

Performance

Long Life

Extend time between filter changes

15 products

High Temperature

Endure high temperatures without breaking down

2 products

High-Efficiency Pleated Panel Air Filters

Trap common allergens such as dander, mold spores, and pollen. These filters balance filtration efficiency and airflow, making them more cost-effective than higher-rated filters.

					Small Pack			Large Pack
	HVAC Filter Trade Size	MERV Filter Rating	Max. Temp., ° F	Specs. Met	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
1" Thick



		10 × 10	11	150	UL 900	2	00000000	000000	12	00000000	000000


		10 × 20	11	150	UL 900	2	00000000	00000	12	00000000	000000
		12 × 12	11	150	UL 900	2	00000000	00000	12	00000000	00000
		12 × 16	11	150	UL 900	2	00000000	00000	12	00000000	000000
		12 × 20	11	150	UL 900	2	00000000	00000	12	00000000	000000
		12 × 24	11	150	UL 900	2	0000000	00000	12	000000	00000
		14 × 25	11	150	UL 900	2	0000000	00000	12	000000	000000
		15 × 20	11	150	UL 900	2	0000000	00000	12	000000	000000
		16 × 16	11	150	UL 900	2	00000000	00000	12	00000000	00000
		16 × 20	11	150	UL 900	2	0000000	00000	12	000000	000000
		16 × 25	11	150	UL 900	2	0000000	00000	12	000000	000000


		16 × 30	11	150	UL 900	2	00000000	00000	12	00000000	000000
		18 × 18	11	150	UL 900	2	00000000	00000	12	00000000	000000
		18 × 24	11	150	UL 900	2	0000000	00000	12	000000	000000
		20 × 20	11	150	UL 900	2	0000000	00000	12	000000	000000
		20 × 24	11	150	UL 900	2	0000000	00000	12	000000	000000
		20 × 25	11	150	UL 900	2	0000000	00000	12	0000000	000000
		20 × 30	11	150	UL 900	2	00000000	00000	12	00000000	000000
		24 × 24	11	150	UL 900	2	0000000	00000	12	0000000	000000


		2" Thick



				10 × 10	11	150	UL 900	2	00000000	00000	12	00000000	000000


				12 × 12	11	150	UL 900	2	00000000	00000	12	00000000	00000
				12 × 16	11	150	UL 900	2	00000000	00000	12	00000000	000000
				12 × 20	11	150	UL 900	2	00000000	00000	12	00000000	000000
				12 × 24	11	150	UL 900	2	0000000	00000	12	0000000	000000
				14 × 25	11	150	UL 900	2	0000000	00000	12	0000000	000000
				15 × 20	11	150	UL 900	2	0000000	00000	12	0000000	00000
				16 × 16	11	150	UL 900	2	00000000	00000	12	00000000	00000
				16 × 20	11	150	UL 900	2	0000000	00000	12	0000000	000000
				16 × 24	11	150	UL 900	2	0000000	00000	12	0000000	000000
				16 × 25	11	150	UL 900	2	00000000	00000	12	00000000	000000


				18 × 18	11	150	UL 900	2	00000000	00000	12	00000000	000000
				18 × 24	11	150	UL 900	2	0000000	00000	12	0000000	000000
				20 × 20	11	150	UL 900	2	0000000	00000	12	0000000	000000
				20 × 24	11	150	UL 900	2	0000000	00000	12	0000000	000000
				20 × 25	11	150	UL 900	2	0000000	00000	12	0000000	000000
				20 × 30	11	150	UL 900	2	00000000	00000	12	00000000	000000
				24 × 24	11	150	UL 900	2	0000000	00000	12	0000000	000000


				4" Thick



						12 × 24	11	150	UL 900	2	00000000	00000	6	00000000	000000


						14 × 25	11	150	UL 900	2	00000000	00000	6	00000000	000000
16 × 20						11	150	UL 900	2	00000000	00000	6	00000000	000000
16 × 25	11					150	UL 900	2	0000000	00000	6	0000000	000000
18 × 24	11					150	UL 900	2	00000000	00000	6	00000000	000000
20 × 20	11					150	UL 900	2	0000000	00000	6	0000000	000000
20 × 24	11					150	UL 900	2	0000000	00000	6	0000000	000000
20 × 25	11					150	UL 900	2	0000000	00000	6	0000000	000000
24 × 24	11					150	UL 900	2	0000000	00000	6	0000000	000000

Long-Life High-Efficiency Pleated Panel Air Filters

Tight pleats create a larger surface area than standard pleats for a longer life. These filters trap common allergens such as dander, mold spores, and pollen. High-efficiency filters also balance filtration efficiency and airflow, making them more cost-effective than higher-rated filters. Use them in data centers and other locations that require extra-clean air.

	MERV Filter Rating	Max. Temp., ° F		Each
2" Thick



	12 × 24	11	175	0000000	000000


	16 × 20	11	175	0000000	00000
	16 × 25	11	175	0000000	00000
	18 × 24	11	175	0000000	00000
	20 × 20	11	175	0000000	00000
	20 × 24	11	175	0000000	00000
	20 × 25	11	175	0000000	00000
	24 × 24	11	175	0000000	00000


	4" Thick



			12 × 24	11	175	0000000	00000


			16 × 20	11	175	0000000	00000
			16 × 25	11	175	0000000	00000
			20 × 20	11	175	0000000	00000
			20 × 24	11	175	0000000	00000
			20 × 25	11	175	0000000	000000
			24 × 24	11	175	0000000	000000

High-Efficiency Box Air Filters

Breathe easier with filters that trap common allergens, such as dander, mold spores, and pollen. They're also designed to handle airflow fluctuations, like those in variable air volume systems. Often used in data centers and other environments needing extra-clean air, these filters balance efficiency and airflow—making them more cost-effective than higher-rated options.

	MERV Filter Rating	Max. Temp., ° F	Specs. Met		Each
6" Thick



	12 × 24	11	180	UL 900	0000000	0000000


	20 × 24	11	180	UL 900	0000000	000000
	24 × 24	11	180	UL 900	0000000	000000


	12" Thick



			12 × 24	11	180	UL 900	0000000	000000


			20 × 24	11	180	UL 900	0000000	000000
			24 × 24	11	180	UL 900	0000000	000000

High-Temperature High-Efficiency Box Air Filters

Handle the heat while capturing common allergens, such as dander, mold spores, and pollen. These filters won't break down in temperatures up to 900°F, and they can also withstand airflow fluctuations, like those in variable air volume systems. High-efficiency filters like these balance filtration efficiency and airflow, making them more cost-effective than higher-rated filters.

	MERV Filter Rating	Max. Temp., ° F	Specs. Met		Each
12" Thick



	12 × 24	11	900	UL 900	0000000	0000000


	24 × 24	11	900	UL 900	0000000	000000